Bi-Women who came out in adulthood, how did you know?

TL;DR How did you know for a fact you were bi, and what steps did you take to acclimate yourself into the LGBT community ?

I'm 29, and since very young I've experienced same sex attraction but come from a very religious family. I spent much of my teens and early 20's praying the queerness away. The past several years I've been deconstructing religion and I'm estranged from family so the societal and religious pressure are no longer factors. Up until this point I've only dated men, I've had sexually charged exchanges with women that have gone nowhere, and went on one date with a woman I met on bumble; swear I met her on the queer side of bumble but she swears it was bumble bff LOL. Anywho, how did you know for a fact you were bi, and what steps did you take to acclimate yourself into the LGBT community ?